Patch "thermal/drivers/hisi: Fix missing interrupt enablement" has been added to the 4.9-stable tree

Patch "thermal/drivers/hisi: Fix missing interrupt enablement" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    thermal/drivers/hisi: Fix missing interrupt enablement

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     thermal-drivers-hisi-fix-missing-interrupt-enablement.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From c176b10b025acee4dc8f2ab1cd64eb73b5ccef53 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Thu, 19 Oct 2017 19:05:43 +0200
Subject: thermal/drivers/hisi: Fix missing interrupt enablement

From: Daniel Lezcano <daniel.lezcano@linaro.org>

commit c176b10b025acee4dc8f2ab1cd64eb73b5ccef53 upstream.

The interrupt for the temperature threshold is not enabled at the end of the
probe function, enable it after the setup is complete.

On the other side, the irq_enabled is not correctly set as we are checking if
the interrupt is masked where 'yes' means irq_enabled=false.

	irq_get_irqchip_state(data->irq, IRQCHIP_STATE_MASKED,
				&data->irq_enabled);

As we are always enabling the interrupt, it is pointless to check if
the interrupt is masked or not, just set irq_enabled to 'true'.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Tested-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Kevin Wangtao <kevin.wangtao@hisilicon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/thermal/hisi_thermal.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/thermal/hisi_thermal.c
+++ b/drivers/thermal/hisi_thermal.c
@@ -345,8 +345,7 @@ static int hisi_thermal_probe(struct pla
 	}
 
 	hisi_thermal_enable_bind_irq_sensor(data);
-	irq_get_irqchip_state(data->irq, IRQCHIP_STATE_MASKED,
-			      &data->irq_enabled);
+	data->irq_enabled = true;
 
 	for (i = 0; i < HISI_MAX_SENSORS; ++i) {
 		ret = hisi_thermal_register_sensor(pdev, data,
@@ -358,6 +357,8 @@ static int hisi_thermal_probe(struct pla
 			hisi_thermal_toggle_sensor(&data->sensors[i], true);
 	}
 
+	enable_irq(data->irq);
+
 	return 0;
 }
 


Patches currently in stable-queue which might be from daniel.lezcano@linaro.org are

queue-4.9/thermal-drivers-hisi-fix-kernel-panic-on-alarm-interrupt.patch
queue-4.9/thermal-drivers-hisi-fix-multiple-alarm-interrupts-firing.patch
queue-4.9/thermal-drivers-hisi-fix-missing-interrupt-enablement.patch